Validating a password protection system
Before jumping into the nuts and bolts of input and output, it's worth mentioning one of the most crucial underlying principles of security: trust.We have to ask ourselves: do we trust the integrity of request coming in from the user’s browser? Do we trust that upstream services have done the work to make our data clean and safe? Do we trust the connection between the user’s browser and our application cannot be tampered? Do we trust that the services and data stores we depend on?Cade Cairns Cade Cairns is a software developer with a passion for security.He has experience leading teams creating everything from enterprise applications to security testing software, mobile applications, and software for embedded devices.Of course, you need to write code that fulfills customer functional requirements. Further you are expected to write this code to be comprehensible and extensible: sufficiently flexible to allow for the evolutionary nature of IT demands, but stable and reliable.
Our form handling code has application logic with different behavior depending on those values. We are trusting that downstream logic processes untrusted content correctly. So what can a developer do to minimize the danger that untrusted input will have undesirable effects in application code? Input validation is the process of ensuring input data is consistent with application expectations.Unlike Performance, they often don’t know “secure enough” when they see it.So how can a developer work in a world of vague security requirements and unknown threats?For now, suffice it to say that we will identify a series of risks to our system, and now that they are identified, we will have to address the threats that arise.HTML forms can create the illusion of controlling input.